In addition to holding all conditions of an experiment constant, what is another control method that a researcher could use to minimize the potential presence of extraneous variables?
A) Use a within-subjects design
B) Use treatment or control groups
C) Use several independent variables
D) Use more participants in the experiment
B
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A researcher measures eye color for a sample of n = 50 people. Which measure of central tendency would be appropriate to summarize the measurements?
a. Mean c. Mode b. Median d. Any of the three measures could be used
According to Piaget, one of the major developments during the sensorimotor stage is the emergence of the concept of
a. conservation. b. reversibility. c. object permanence. d. transformation.
Punishment may be necessary to manage the behavior of a child. Therefore,
a. use the minimum punishment necessary to suppress misbehavior. b. use spanking since it will prevent "spoiling" the child. c. delay the application of punishment as long as possible after the misbehavior. d. do all of these.
Concerning "honesty," strict learning theorists would say that
a. "honesty" is considered a secondary trait. b. "honesty" is the result of a lack of fixation during psychosocial development. c. knowing a person is "honest" allows us to predict his or her behavior in a multitude of situations. d. the specific situation would have to be known in order to make a "correct" prediction.